diff --git a/platformapi/dingdingapi/callback.go b/platformapi/dingdingapi/callback.go
index 0c0bd18b..8c4793d7 100644
--- a/platformapi/dingdingapi/callback.go
+++ b/platformapi/dingdingapi/callback.go
@@ -129,7 +129,7 @@ func (a *API) Decrypt(sign, timestr, nonce, msg string) (decryptedMsg string, er
 	//		}
 	//	}
 	//}
-	c := NewDingTalkCrypto(a.GetCallbackToken(), string(a.GetCallbackAESKey()), a.corpID)
+	c := NewDingTalkCrypto(a.GetCallbackToken(), string(a.GetCallbackAESKey()), a.GetAppID())
 	return c.GetDecryptMsg(sign, timestr, nonce, msg)
 }